In this page, you can experience and learn FedCM passive mode. FedCM has two modes: "passive" and "active". * "active": FedCM prompt must be initiated by user interaction (such as clicking a button). * "passive": FedCM prompt will be initiated without direct user interaction. ## How to use If the browser supports FedCM, a FedCM widget will appear at the top right corner as soon as you land this page. FedCM on this website supports "[FedCM Demo IdP](https://fedcm-idp-demo.glitch.me)" and "[Google](https://accounts.google.com)". Select one of identity providers (IdP) and a popup window appears if you haven't signed in to the IdP yet. As soon as you are signed in to the IdP, you're signed in to this website. ## How to develop Learn how to implement FedCM on a relying party: * [Implement an identity solution with FedCM on the Relying Party side](https://privacysandbox.google.com/cookies/fedcm/implement/relying-party)